Hope that helps If your exam application is going to be a ASP.Net website/web application, then you can't detect how many tabs/browsers instance are open. You can look into HTML5 Fullscreen API for a wayout, but I don't think all the browser has support for it.
C# - Application continues running in the background when closing it after an another form was opened
help you fix your problem In your Form2, you need to bring up the existing Form1 instance rather than creating a new one (that's why closing this newly created Form1 won't exit the application, as your old Form1 instance is still hiding...). So you could get reference passed when creating aboutdialog, and show that instead when closing aboutdialog: Form1:
private void AboutButton_Click(object sender, EventArgs e)
var aboutdialog = new Form2(this);
Any of those help Here's one way to accomplish this, but it will involve creating a script. If you are on a windows machine, then you can do this with a batch file; otherwise a shell script will do for linux flavors. 1) Create an empty script for now - somewhere on your file system (e.g. run_https_url.sh or run_https_url.bat)
url="$1" ## This holds the %URL% paramter set in Eclipse
open -a "Google Chrome" $url
start chrome %url%
yarn web ui for the running flink application can't be opened
I hope this helps . What exact version of flink do you run 1.3.0? This looks like a classpath problem. Due you run your cluster on yarn you might have another netty version on your classpath. Maybe you can check and post the classpath which is used to start the yarn-application.